Watch-movement



2 SheetsSheet 1.

(No Model.)

G. HUNTER.

WATCH MOVEMENT.

Patented Aug. 10, 1886.

N PETERS. Phmmhkhogmphur. Wilhmglnm o. u

(No Model.) 2 Sheets-Sheet 2. G. HUNTER.

WATCH MOVEMENT. No. 347,272. Patented Aug. 10, 1886.

- mnmnm IIIIIU UNITED STATES PATENT GEORGE HUNTER, OF ELGIN, ASSIGNOR TO THE ELGIN NATIONAL WATCH COMPANY, OF CHICAGO, ILLINOIS.

WATCH-MOVEMENT.

EPECIFICATION forming part of Letters Patent No. 347,272, dated August 10, 1881'.

Application filed March 4, 1586,

To all] whom it may concern.-

Be it known that I, GEORGE HUNTER, of Elgin, in the county of Kane, and in the State of Illinois, have invented certain new and useful Improvements in atch-Movements; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, in which- Figure l is a perspective view from the rear side of a \\'iItCh-l11OV6l110lll3 containing my improvements. Fig. 2 is a like view of the same with the dust bands or strips removed. Fig. 3 is a perspective view of the movement-plates and barrel with the barrelbridge removed. Fig. 4- is a like view from the inner sides of said bridge and the adjacent portion of the pillar-plate, and Fig. 5 is a section upon line a 00 Of Fig. 1.

Letters of like name and kind refer to like parts in each of the figures.

The design of my invention is to simplify the construction, to lessen the expense, and to increase the strength and durability of watch-iuovcnients; to which end said invention consists, principally, in a watch-movement in which the barrel-bridge extends to and is secured directly upon the pillar-plate, substantially as and for the purpose hereinafter specified.

It consists, further, in a watch-movement in which the barrel-bridge is secured to and supported entirely by the pillar-plate, substantially as and for the purpose hereinafter shown.

It consists, further, in a watch-movementin which the barrel-arbor is in part journaled within a bridge that is disconnected from and independent of the top plate, substantially as and for the purpose hereinafter set forth.

It consists, further, in a watch-movement in which the barrel-arbor and winding-pinion are in part journaled within a bridge that is secured directly to the pillar-plate, substantiall y as and for the purpose hereinafter shown and described.

It consists, further, in a watchmovement in which the barrel-arbor and winding-pinion are jourualed within and between the pillarplate and a bridge that is entirely independ- Serial No. 191,000. (No model.)

ent of the top plate, substantially as and for the purpose hereinafter specified.

It consists, finally, in the combination of the pillanplate, the top plate, the barrelbridge, and the dust-bands, substantially as and for the purpose hereinafter shown.

In the annexed drawings, represents the pillar-plate, and I; the top plate, of a watchmovement, which plates are connected together and held in relative positions by means of pillars 0, all in the usual manner. About one-third of the top plate, 13, is removed at the points where the barrel D and the windingpinion E are located, and for aeorresponding area the inner face of the pillarplate A is raised, so as to give to the latter at such point about one-fourth greater thickness than is had by the remainder of said plate.

Fitting into and substantially filling the space left by the removal of a part of the top plate, B, is a bridge, F, which extends to and fits upon the raised part a. of the plate A, and is secured thereon by means of two screws, f. Said bridge incloses the barrel D, and furnishes a bearing for one end of its arbor d. It 7 also incloses the windingpinion E, and in connection with said raised part furnishes a bearing for the same. The outer side of said bridge has its ends preferably extended slightly over the adjacent portions of said top plate; but such projections may, if desired, be omitted.

As the bridge is secured directly to the pil lar-plate, it will be seen that it possesses a maximum of solidity and strength, and that it is impracticable for either of the parts journaled within or between said bridge and plate to get out ofplace, as is often done in move ments of usual construction. In addition to such advantages in the construction shown 9c said barrel-bridge is entirely independent of the top plate, and enables the barrel to be removed and replaced without disturbance of any other portion of the train. By causing the one bridge to journal both the barrel-arbor and winding-pinion the use of one bridge, with its screws, is avoided, and a muchbetter bearing is secured for said pinion than would otherwise be practicable.

The inner face of each of the plates A. and

' B is provided near its edge with a narrow groove, a and b, respectively, which terminates at each end of the bridge F in an outward curve; and into such grooves are slipped two thin strips of metal, G, that meet or overlap each other at the opposite side of the movement and operate to effectually close the opening between the edges of said plates, so as to exclude dust from the train.

Having thus described my invention, what I claim is I 1. A watch-movement in which the barrelbridge extends to and is secured directly upon the pillar-plate, substantially as and for the purpose specified.

2. A watch-movement in which the barrelbridge is secured to and supported entirely by the pillar-plate, substantially as and for the purpose shown.

3. A watch'movement in which the barrelarbor is in part journaled within a bridge that is disconnected from and independent of the top plate, substantially as and for the purpose set forth.

4. A watch-movement in which the barrel-' in and between the pillar-plate and a bridge that is entirely independent of the top plate, substantially as and for the purpose specified.

6. The combination of the pillar-plate, the top plate, the barrel-bridge, and the dustbands, substantially as and for the purpose shown.

In testimony thatI claim the foregoing I have hereunto set my hand this 29th day of December, 1885.

GEORGE HUNTER.

\Vitnesses:

W. H. OLOUDMAN, W. P. HEMMENS. 

